مقایسهٔ روش‌ها

	تورم و تخریب	تحلیل دینامیکی مکانیکی
حوزه	زیست‌مواد	زیست‌مواد
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1960	1960
پدیدآور	Wichterle and Lim	Ferry and Schwarzl
نوع	Kinetic assay	Rheological characterization
منبع بنیادین	Wichterle, O., & Lim, D. (1960). Hydrophilic gels for biological use. Nature, 185(4706), 117-118.	Menard, K. P. (2008). Dynamic mechanical analysis: a practical introduction (2nd ed.). CRC Press.
نام‌های دیگر	hydrogel swelling, polymer degradation, mass loss assay	DMA, rheological analysis, viscoelastic testing
مرتبط	4	3
خلاصه	The swelling and degradation assay measures how biomaterial scaffolds absorb water (swelling) and lose mass over time due to degradation. Developed by Wichterle and Lim in 1960 for hydrogels, the assay is fundamental for characterizing hydrogels, synthetic polymers, and composite scaffolds intended for tissue engineering. The assay provides quantitative data on swelling kinetics (equilibrium water content, swelling ratio), degradation kinetics (mass loss rate, half-life), and mechanisms of degradation (chain scission, enzymatic breakdown).	Dynamic mechanical analysis (DMA) measures the viscoelastic properties of materials—their elastic stiffness and viscous damping—by applying a sinusoidal stress or strain and measuring the phase lag and amplitude of the material's response. Developed from rheology principles in the 1960s and formalized by Ferry, Schwarzl, and others, DMA provides quantitative measures of how polymeric biomaterials respond to time-dependent and frequency-dependent mechanical stimuli. Key outputs include the storage modulus (elastic component), loss modulus (viscous component), and loss tangent (tan δ), which together characterize the material's mechanical behavior across temperature and frequency ranges.